共 5 条
[2]
RUSHTON D I, 1969, Journal of Obstetrics and Gynaecology of the British Commonwealth, V76, P266
[3]
SELLER MJ, 1977, LANCET, V1, P955
[4]
SELLER MJ, 1976, LANCET, V1, P807
[5]
SUTHERLAND GR, 1977, LANCET, V1, P649